I'm new to lightroom and photo editing. I'm just starting on the journey to finally get my head round it all and I'm stumped on step 1.

I've just setup my catalog but when I select some of my photos (jpg's) in the develop module, the images look corrupted to me, although they look fine in the preview and outside of lightroom develop module.

In the screenshot example attached, there is lots of blue everywhere and in other daytime photos there is solid red. The exposure slider makes it worse or less

I assume I'm missing something, probably fundamental or simple! Please could someone guide me in the right direction!